Fig. 1

Representative case (case #1). (A) A 46-year-old man underwent non-contrast computed tomography due to progressive dyspnea and hemoptysis. A round nodule was seen at the proximal right main bronchus. (B) Gross bronchoscopic findings were a round mass at the proximal right main bronchus causing near total occlusion. (C) After tumor resection using rigid bronchoscopy, the tumor base was cauterized using a diode laser. (D) The tumor mass was resected en bloc. Actin staining was diffusely strongly positive with Ki-67 negativity. (E) Positron emission tomography scan performed one week after the procedure showed complete tumor resection. (F) Surveillance bronchoscopy performed seven months after the procedure demonstrated no tumor recurrence. There was no recurrence during 42.5 months of follow-up